CPT Instruction

[roxusa]

What is the symbol for divide used in a CPT Instruction

Expressions - The expression is zero or more lines, with up to 28 characters per line, up to 255 characters. Instructions that can be used in the Expression include: +, -, *, l (DIV), SQR, - (NEG), NOT, XOR, OR, AND, TOD, FRD, LN, TAN, ABS, DEG, RAD, SIN, COS, ATN, ASN, ACS, LOG, and ** (XPY). The execution of a CPT instruction is longer than a single arithmetic operation and uses more instruction words.

l (DIV) I cant make out what this is, Thanks

 

[dmargineau]

"Shift" + "Backslash" (above the "Enter" key)

 

[roxusa]

Maybe what I should be asking is how to find the average of a group of integers.
I was going to use a CPT

 

[roxusa]

Thanks I see I was using a forward slash

 

[KuulKuum]

It is called the "Pipe" symbol

 

[dmargineau]

Maybe what I should be asking is how to find the average of a group of integers.
I was going to use a CPT

CPT would do for LAD programming; FBD (Function Block Diagram) and ST (Structured Text) languages support the MAVE (Moving Average) instruction.

 

[RonJohn]

Roxusa, what type processor are you using? The Logix based processors have an average (AVE) instruction.

 

[roxusa]

using a 1766-L32BXB (Micrologix 1400)

 

[RonJohn]

Well, you're out of luck with an AVE instruction for ML1400. Searching this forum for "SLC" and "Average" turns up several results. Below are a couple that look promising.

http://www.plctalk.net/qanda/showthread.php?t=91402

http://www.plctalk.net/qanda/showthread.php?t=66277

 

[chopperprop]

I add up all the values using CPT then move the outcome to an integer then use the divide instruction.

 

[thingstodo]

Thanks for the archive answers - used in Dec 2022!

 

[joseph_e2]

Watch out for overflows with adding a bunch of integers together. The highest value you can have for your sum is 32767. If your sum exceeds that, you'll need a different solution.


edit to add:
Didn't realize the thread was quite that old...